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</a></li> <li><a href="/sw/jsref/dom_obj_time.html" title="Mfano wa HTML DOM Time"><time></a></li> <li><a href="/sw/jsref/dom_obj_title.html" title="Mfano wa HTML DOM Title"><title></a></li> <li><a href="/sw/jsref/dom_obj_track.html" title="Mfano wa HTML DOM Track"><track></a></li> <li><a href="/sw/jsref/dom_obj_u.html" title="Mfano wa HTML DOM Underline"><u></a></li> <li><a href="/sw/jsref/dom_obj_ul.html" title="Mfano wa HTML DOM Ul"><ul></a></li> <li><a href="/sw/jsref/dom_obj_var.html" title="Mfano wa HTML DOM Variable"><var></a></li> <li><a href="/sw/jsref/dom_obj_video.html" title="Mfano wa HTML DOM Video"><video></a></li> </ul> <h2>其他参考手册</h2> <ul> <li><a href="/sw/jsref/obj_cssstyledeclaration.html" title="Mfano wa CSSStyleDeclaration">CSSStyleDeclaration</a></li> <li><a href="/sw/jsref/jsref_type_conversion.html" title="Tukio wa utumizi wa mimea ya JavaScript">JS 类型转换</a></li> </ul> </div> <div><h3><center> 选修课 </center><h3> <h2>课程推荐：</h2> <ul> <li><a href="/sw/howto/index.html" title="Kikaa ya W3C.com">Kikaa ya W3C.com</a></li> </ul> </div> </div> <div id="maincontent"> <div class="idea"> <a href="/"><button>English</button></a> <a href="/zh/"><button>中文</button></a> <a href="/oldzh/"><button>繁體中文</button></a> <a href="/ru/"><button>Русский</button></a> <a href="/fr/"><button>Français</button></a> <a href="/de/"><button>Deutsch</button></a> <a href="/es/"><button>Español</button></a> <a href="/pt/"><button>Português</button></a> <a href="/ja/"><button>日本語</button></a> <a href="/ko/"><button>한국어</button></a> <a href="/it/"><button>Italiano</button></a> <a href="/ar/"><button>عربي</button></a> <a href="/hi/"><button>हिंदी</button></a> <a href="/bn/"><button>বাংলা</button></a> <a href="/ms/"><button>Bahasa Malaysia</button></a> <a href="/my/"><button>မြန်မာ</button></a> <a href="/vi/"><button>Tiếng Việt</button></a> <a href="/th/"><button>ภาษาไทย</button></a> <a href="/lo/"><button>ລາວ</button></a> <a href="/id/"><button>Bahasa Indonesia</button></a> <a href="/ur/"><button>اردو</button></a> <a href="/ha/"><button>Hausa</button></a> <a href="/pl/"><button>Język polski</button></a> <a href="/pa/"><button>ਪੰਜਾਬੀ</button></a> <a href="/sv/"><button>Svenska</button></a> <a href="/da/"><button>Dansk</button></a> <a href="/nl/"><button>Nederlands</button></a> <a href="/tr/"><button>Türkçe</button></a> <a href="/fi/"><button>suom.</button></a> <a href="/el/"><button>Ελληνικά</button></a> <a href="/fa/"><button>فارسی</button></a> <a href="/sw/"><button>Kiswahili</button></a> <a href="/te/"><button>తెలుగు</button></a> <a href="/tl/"><button>wikang Galu</button></a> </div> <h1>JavaScript Array flat()</h1> <div class="prenextnav-ref"> <ul> <li> Kuzingatia kuu <a href="/sw/jsref/jsref_array_findlastindex.html" title="Tukio wa findLastIndex() kwa Array ya JavaScript">findLastIndex()</a></li> <li> Pya ya kuzingatia <a href="/sw/jsref/jsref_array_flatmap.html" title="Tukio wa flatMap() kwa Array ya JavaScript">flatMap()</a></li> <li> Rudi kati <a href="/sw/jsref/jsref_obj_array.html" title="Kitabu cha Mafaa ya JavaScript Array">Kitabu cha Mafaa ya JavaScript Array</a></li> </ul> </div> <section> <h2>定义和用法</h2> <p><code>flat()</code> 方法用于将子数组元素连接到新数组中。</p> <h3>另请参阅：</h3> <p><a href="/sw/jsref/jsref_map.html" title="Tukio wa map() kwa Array ya JavaScript">Array map() 方法</a></p> <p><a href="/sw/jsref/jsref_array_flatmap.html" title="Tukio wa flatMap() kwa Array ya JavaScript">Array flatMap() 方法</a></p> <p><a href="/sw/jsref/jsref_filter.html" title="Tukio wa filter() kwa Array ya JavaScript">Array filter() 方法</a></p> <p><a href="/sw/jsref/jsref_foreach.html" title="Tukio wa forEach() kwa Array ya JavaScript">Array forEach() 方法</a></p> </section> <section> <h2>实例</h2> <h3>例子 1</h3> <p>创建一个新数组，并将子数组元素连接起来：</p> <pre class="language-js"> const myArr = [[1,2],[3,4],[5,6]]; const newArr = myArr.flat(); </pre> <p class="tiy"><a target="_blank" href="/sw/tiy/t.html?f=jsref_array_flat_1">亲自试一试</a></p> <h3>例子 2</h3> <p>对于多层嵌套的数组，可以指定展开的深度：</p> <pre class="language-js"> const myArr = [1, 2, [3, [4, 5, 6], 7], 8]; const newArr = myArr.flat(2); </pre> <p class="tiy"><a target="_blank" href="/sw/tiy/t.html?f=jsref_array_flat_2">亲自试一试</a></p> </section> <section> <h2>Inafaa kusoma</h2> <pre class="language-js"> array.flat(<i>depth</i>) </pre> <h3>Makosa</h3> <table class="parameter"> <tr> <th style="width: 25%;">Makosa</th> <th>Maelezo</th> </tr> <tr> <td><i>depth</i></td> <td>Inayotaka. Kwa mawingu ya kusaidia kwenye ukubwa wa mawingu, kufikia kufikia 1. Kwa chaguo cha kawaida.</td> </tr> </table> <h3>Matokeo</h3> <table class="technical-details"> <tr> <th style="width: 25%;">Aina</th> <th>Maelezo</th> </tr> <tr> <td>Mawingu</td> <td>Mawingu ya kuzingatia kushika.</td> </tr> </table> </section> <section> <h2>Mwongozo wa barabara</h2> <p>Kuanzia Januari 2020, barabara zote za kisasa zinaongeza JavaScript kwa mawingu <code>flat()</code> Makosa:</p> <table class="browser-support"> <tr> <th class="bsChrome">Chrome</th> <th class="bsEdge">Edge</th> <th class="bsFirefox">Firefox</th> <th class="bsSafari">Safari</th> <th class="bsOpera">Opera</th> </tr> <tr> <td>Chrome 69</td> <td>Edge 79</td> <td>Firefox 62</td> <td>Safari 12</td> <td>Opera 56</td> </tr> <tr> <td>Februari 2018</td> <td>Januari 2020</td> <td>Februari 2018</td> <td>Februari 2018</td> <td>Februari 2018</td> </tr> </table> </section> <section class="related-pages"> <h2>Mafunzo ya mawingu:</h2> <p><a href="/sw/js/js_arrays.html" title="Makundi ya JavaScript">Mawingu</a></p> <p><a href="/sw/js/js_array_const.html" title="Makundi ya kuhesabu ya JavaScript">Mafupi ya mawingu</a></p> <p><a href="/sw/js/js_array_methods.html" title="Matukio ya kufanya kwa makundi ya JavaScript">Matukio ya kufaa kwa mawingu</a></p> <p><a href="/sw/js/js_array_search.html" title="Tafuta makundi ya JavaScript">Matukio ya kusoma mawingu</a></p> <p><a href="/sw/js/js_array_sort.html" title="Tasifa ya makundi ya JavaScript">Matukio ya kusaidia mawingu</a></p> <p><a href="/sw/js/js_array_iteration.html" title="Makundi ya JavaScript ya kuelewa">Matukio ya kufaa sana ya mawingu</a></p> </section> <div class="prenextnav-ref"> <ul> <li> Kuzingatia kuu <a href="/sw/jsref/jsref_array_findlastindex.html" title="Tukio wa findLastIndex() kwa Array ya JavaScript">findLastIndex()</a></li> <li> Pya ya kuzingatia <a href="/sw/jsref/jsref_array_flatmap.html" title="Tukio wa flatMap() kwa Array ya JavaScript">flatMap()</a></li> <li> Rudi kati <a href="/sw/jsref/jsref_obj_array.html" title="Kitabu cha Mafaa ya JavaScript Array">Kitabu cha Mafaa ya JavaScript Array</a></li> </ul> </div><div style="background-color:#fcfdf8; padding:0;"> </div> </div> <!-- maincontent end --> <div id="sidebar"> <div><h3><center> Kifaa cha kifaa </center><h3> <h5 id="tools_reference"><a href="/sw/jsref/index.html">Kitabu cha Mafaa ya JavaScript na HTML DOM</a></h5> <h5 id="tools_example"><a href="/sw/js/js_examples.html">Mifano ya JavaScript</a></h5> <h5 id="tools_quiz"><a href="/sw/js/js_quiz.html">Mazoezi ya JavaScript</a></h5> <h5 id="tools_tutorial"><a href="/sw/js/index.html">Tuzo la JavaScript</a></h5> </div> <div><h3><center> Viungo vya msaada </center><h3> <div id="sbtg"> <script src="/myjs/zzsr.js"></script> </div> </div> </div> <div id="footer"> <p id="p1"> Matendo ya W3C.com inatawala kwa kusadiki na kufanana na mafanikio ya kusadiki, hatukubaliwa kusadiki kwa mafanikio ya kusadiki ya kutumia matendo ya tovuti hii. 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